Banking and nosing level indicator



June 24, 1930. J. E. VAYDA BANKING AND NOSING LEVEL INDICATOR Filed Nov. 14, 1928 anomtoz JblmE. T ZIyda I l l r 31 .21'111 Patented June 24, 1930 "tar eerie JOHN E. VAYDA, OF BAYONNE, NEWV JERSEY BANKING AND NOSING LEVEL INDICATOR Application filed November 14,

This invention relates to a banking and nosing level indicator.

The object of the invention is the production of a banking and nosing level indicator,

by means of which the level, both longitudinally and at right angles thereto is indicated. The second object of the invention is the production of a banking and nosing level indicator by means of which the safety of operating an aeroplane is enhanced. The

third object of the invention is the production of a banking and nosing level indicator, adapted to be attached to the instrument plate of an aeroplane.

The fourth object of the invention is the production of a banking and nosing level indicator, by means of which the lengthwise and crosswise level of an aeroplane or other apparatus for which it is used is simultancously indicated.

In the accompanying drawings Fig. 1 represents a front elevation of an exemplification of the improved banking and nosing level indicator attached to the instrument plate of an aeroplane. Fig. 2 shows a side View of Fig. 1 with a partial section on the line 2, 2 of said Fig. 1 and Fig. 3 indicates a top view of Fig. 1 with a partial section of the line 3, 8 of said Fig. 1.

A supporting block, preferably of balsa wood, comprises the members 20 and 21 having the projectin portions 22 and 23. Registering longitudinal grooves each having the lower member 25, the front upright member 26 and the rear upright member 27 are formed .in the members of the supporting block at their adjacent faces. A cross groove having the lower member 32 and the upright end me ibers 33 and 34 is formed in the front faces of the members of the block and in the projecting portions 22 and 23 thereof. The said longitudinal groove and said cross groove are located in planes at right angles to each other.

A double spirit banking level comprising the lower member 36 and the upright end members 37 and 38 is securely located in the cross groove of the supporting block. A fluid such as mercury is carr'ed in the banking 5C level.

1928. Serial No. 319,432.

A nosing spirit level comprising the lower longitudinal member 40, the front upright member 41 and the rear upright member 42 is securely located in the longitudinal groove of the supporting block. A fluid such as mercury also is carried in the banking level.

The normally vertical planes of the spirit levels are located in planes at right angles to each other. Bolts 44 and 45 dctacha bly clamp the members 20 and 21 of the supporting block to each other.

A face plate 48 bears against the front face of the supporting block and maintains the banking level in operative position. The said face plate 48 has formed therein openings 53 and 54 opposite the upper portions of the upright members 37 and 38 of the banking level. Scales 55 and 56 showing degrees are indicated on the front face of the face plate 48 adjacent to the openings 53 and 54. The said scales have their Zero lines coincident with the upper level of the mercury in the upright members 37 and 88 of the banking level, when the aeroplane or other apparatus, to which the banking and nosing level indicator is attached, is in its normal sidewise horizontal position. An opening 58 is formed in the face plate 48 opposite the upright member 41 of the nosing level. A scale 60 showing degrees is indicated on the front face of the face plate 48 adjacent to the opening 58. Lines indicating degrees extend up and down from a central point of the opening 58, and is located at the level of the fluid in the banking level, when the aeroplane or other apparatus to which the banking and nosing level indicator is attached is in its horizontal longitudinal position.

Bolts extend through the face plate 48 and the projecting portions 22 and 23 of the supporting block.

A casing 68encloses the supporting block and is detachably fastened thereto by means of the screws 69. The instrument plate of an aeroplane 70 has formed therein the opening 71. The casing 68 is passed through the opening 71, and the faceplate 48 is fastened to the plate 70 by means of the screws 73.

The banking and nosing level indicator when clamped in position is 1I1 full view of the operator. Should the aeroplane incline either to the right or left, such deviation is indicated by the scales or 56 and the operator is warned to level the aeroplane. Should the aeroplane deviate from its normally horizontal longitudinal position, the level of the mercury in the upright member 41 will be in dicated by the scale 60 either above or below the zero line thereof and the operator is instantly informed whether the nose of his machine is pointing up or down. If the fluid in the upright member 41 is below the zero line the nose of the aeroplane is pointing down and if above said zero line is pointing An aeroplane when flying with the longi tudiual axis of its fuselage inclined to a horizontal plane, is commercially designated as nosing. lVhen said axis inclines upwardly from the rear end of the fuselage it is designated as nosing upwardly, and when said axis inclines downwardly from the rear end of the fuselage, the aeroplane is nosing downwardly.

Va ions modifications may be made in the invention and the present exemplification is to be taken as illustrative and not limitative thereof.

Having described my invention what I dc sire to secure by Letters Patent and claim is:

1. In a banking and nosing spirit level indicator the combination of a supporting block romprising a pair of members detachably clamped to each other, each of said members havn g formed therein in their adjacent faces a longitudinal groove comprising a lower member with a front upright member and a rear upright member, the front face of the members of the supporting block having formed therein a cross groove comprising a lower member with upright members at its ends, a nosing spirit level comprising a longitudinal member, with a front upright member and a rear-upright member, all of said members being tubular and communicating clamped in said longitudinal groove, a double spirit banking level with a lower tubular member and upright tubular end members located in the cross groove in the end face of the supporting block, the normal vert'eal planes of said spirit levels being at right angles to each other and means to clamp the supporting block in operative position.

2. In a banking and nosing spirit level indicator the combination of a supporting block comprising a pair of members detachably clamped to each other, the said members having formed therein in their adjacent faces registering longitudinal grooves comprising a lower member with a front u n'ight member and a rear upright member, the front face of the members of the supporting block having formed therein a cross groove comprising a lower member with upright members at its ends, a nosing spirit level comprising a longitudinal member, with a front upright member and a rear upright member, all of said members being tubular and communicating clamped in said longitudinal groove, a double spirit banking level with a lower tubular member and upright tubular end members located in an end face of the supporting block the normal vertical plane of said spirit levels being at right angles to each other, a face plate bearing against the front face of the supporting block and fastened thereto, said face plate having an opening opposite the front upright member of the nosing spirit level, a scale indicated on said face plate adjacent to said opening, there being an opening formed in said face plate opposite each of the upright members of the nosing spiritlevel, and a scale indicated on the face plate adjacent to each of the latter openings.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York this 10th day of November, A. D. 1928.

JOHN E. VAYDA. 

